Senior Research Scientist, IPAC, Caltech
Cosmology and Astrophysics

ATLAS Probe: Breakthrough Science
ISCEA (Infrared SmallSat for Cluster Evolution Astrophysics)

Dark Energy (technical book)
Dark Energy Measurements
SN flux-averaging code

Publications   Refereed Papers with Over 50 Citations

Astrophysics Data System:   h-index: 53   g-index: 127   total citations = 16610
Students and Postdocs   Astronomy 101   Teaching Experience

<|Science:1  2|>, , <|New York Times|>, <|Nature|>,
<|Physics World|>, <|Astronomy Magazine|>,
<|Essential Science Indicators: 1  2|>, <|Sooner Magazine|>, <|Physics Today|>

Selected Talks:
Dark Energy Review (Cosmology School in the Canary Islands 2017)
Galaxy Clustering as a Cosmological Probe (Sesto 2013)
Dark Energy Figure of Merit (STScI Dark Energy Symposium 2008)
Theoretical Tools for Supernova Cosmology (Aspen 2007)

Our Place in the Universe (Picture Album)
Cosmology Interview by a Priest (2002)   Dark Energy Interview (2017)
Planet China Interview (2022)

Overview of My Poetry   Poetry Foundation Biography
Poets Cafe Interview   Interview by Connotation Press
Dao De Jing (translation into English)
The Book of Mirrors (poems)  Reviews and Sample Poems
Dreaming of Fallen Blossoms: Tune Poems of Su Dong-Po
Horse by the Mountain Stream (poems)
The Book of Totality (poems): Review  Sample Poems
The Book of Jade (poems): Reviews and Sample Poems
The Carp (poems)   Reviews of The Carp: 1  2
Recently Published Poems  
 Research Interests (Click here for details):
  • Galaxy clustering as dark energy probe
  • Supernovae as dark energy probe
  • Cosmological data analysis
  • Cosmic microwave background anisotropy
  • Observational constraint on inflationary models
  • Gravitational lensing and cosmology
  • Measurement of cosmological parameters

    Research Funding:
    Current: NASA
    Previous: DOE & NSF CAREER Award

    Participation in Space Missions:
    EUCLID (as Coordinator of the Euclid Galaxy Clustering Science Working Group)
    Roman Space Telescope (as the PI of the Roman Galaxy Redshift Survey Project Infrastructure Team)

    Participation in Ground-based Cosmology Projects:
    LSST (member of LSST Dark Energy Collaboration and LSST Supernova Science Collaboration)

    Euclid NASA Science Center at IPAC (ENSCI)
    Euclid Definition Study Report (The Red Book)
    LSST Science Book

    Service: Member of NASA Astrophysics Advisory Committee (2014-2018)

    IPAC, California Institute of Technology
    Mail Code 314-6
    1200 East California Boulevard
    Pasadena, CA 91125

    wang *AT*

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  •  Hubble Deep Field North
    Left: The imprint of primordial seeds (matter density fluctuations) in the cosmic microwave background as seen by the Wilkinson Microwave Anisotropy Probe. Center: A very deep view of space from the Hubble Space Telescope. Right: Our current knowledge of the composition of matter and energy in the universe.

    Selected publications sorted by subject (click here for my complete publication list; and click here for most-cited papers):

      Space Missions

    1. The High Latitude Spectroscopic Survey on the Nancy Grace Roman Space Telescope, ApJ, 928, 1 (2022)

    2. Illuminating Galaxy Evolution at Cosmic Noon with ISCEA: the Infrared Satellite for Cosmic Evolution Astrophysics (2021)

    3. ATLAS Probe: Breakthrough Science of Galaxy Evolution, Cosmology, Milky Way, and the Solar System (Publications of the Astronomical Society of Australia (2019), 36, e015)

    4. Wide-Field InfrarRed Survey Telescope-Astrophysics Focused Telescope Assets WFIRST-AFTA 2015 Report (Final Report by the Science Definition Team of the Wide-Field Infrared Survey Telescope mission, 2015)

    5. Euclid Definition Study Report (ESA document, 2011)

    6. SPACE: the SPectroscopic All-sky Cosmic Explorer, (Experimental Astronomy, 23, 39 (2009))

    7. Joint Efficient Dark-energy Investigation (JEDI): a Candidate Implementation of the NASA-DOE Joint Dark Energy Mission (JDEM) (JEDI white paper submitted to the Dark Energy Task Force, 2005)

      Probing Dark Energy

    8. Linear bias and halo occupation distribution of emission-line galaxies from Nancy Grace Roman Space Telescope, MNRAS, 505, 2784 (2021)

    9. Clustering in the Simulated H-alpha Galaxy Redshift Survey from Nancy Grace Roman Space Telescope, MNRAS, 501, 3490 (2021)

    10. Forecasting Cosmological Constraints from the Weak Lensing Magnification of Type Ia Supernovae Measured by the Nancy Grace Roman Space Telescope, PRD, 102, 123513 (2020)

    11. CMB distance priors revisited: effects of dark energy dynamics, spatial curvature, primordial power spectrum, and neutrino parameters, JCAP, 7, 9 (2020)

    12. Prediction of H-alphaand [OIII] emission line galaxy number counts for future galaxy redshift surveys, MNRAS, 490, 3667 (2019)

    13. Reconstructing the weak lensing magnification distribution of Type Ia supernovae (PRD, 99, 083525 (2019))

    14. Robust and model-independent cosmological constraints from distance measurements (JCAP, 07, 005 (2019))

    15. Predicting H-alpha emission-line galaxy counts for future galaxy redshift surveys (MNRAS, 474, 177 (2018))

    16. Modeling galaxy clustering on small scales to tighten constraints on dark energy and modified gravity (MNRAS, 464, 3005 (2017))

    17. Exploring uncertainties in dark energy constraints using current observational data with Planck 2015 distance priors (PRD, 94, 083521 (2016))

    18. Sampling the Probability Distribution of Type Ia Supernova Lightcurve Parameters in Cosmological Analysis, (MNRAS, 459, 1819 (2016))

    19. Analytic Photometric Redshift Estimator for Type Ia Supernovae From the Large Synoptic Survey Telescope, (MNRAS, 451, 1955 (2015))

    20. Model-Independent Measurements of Cosmic Expansion and Growth at z=0.57 Using the Anisotropic Clustering of CMASS Galaxies From the Sloan Digital Sky Survey Data Release 9 (MNRAS, 443, 2950 (2014))

    21. Measurement of H(z) and D_A(z) from the two-dimensional power spectrum of Sloan Digital Sky Survey luminous red galaxies (MNRAS, 445, 3737 (2014))

    22. Exploring the Systematic Uncertainties of Type Ia Supernovae as Cosmological Probes (PRD, 88, 043511 (2013))

    23. Distance Priors from Planck and Dark Energy Constraints from Current Data (PRD, 88, 043522 (2013))

    24. Toward More Realistic Forecasting of Dark Energy Constraints from Galaxy Redshift Surveys, (MNRAS, 430, 2446 (2013))

    25. Modeling the Anisotropic Two-Point Galaxy Correlation Function on Small Scales and Improved Measurements of H(z), D_A(z), and \beta(z) from the Sloan Digital Sky Survey DR7 Luminous Red Galaxies, (MNRAS, 435, 255 (2013))

    26. Using Multipoles of the Correlation Function to Measure H(z), D_A(z), and \beta(z) From SDSS Luminous Red Galaxies (MNRAS 431, 2634 (2013))

    27. Probing deviations from General Relativity with the Euclid spectroscopic survey (MNRAS, 424, 1392(2012))

    28. Robust constraints on dark energy and gravity from galaxy clustering data (MNRAS, 423, 3631 (2012))

    29. A Comparative Study of Dark Energy Constraints from Current Observational Data (Phys. Rev. D 85, 023517 (2012))

    30. Measurements of H(z) and D(z) from the Two-Dimensional Two-Point Correlation Function of Sloan Digital Sky Survey Luminous Red Galaxies, (MNRAS, 426, 226 (2012))

    31. A Robust Distance Measurement and Dark Energy Constraints from the Spherically-Averaged Correlation Function of Sloan Digital Sky Survey Luminous Red Galaxies, (MNRAS, 423, 1474 (2012))

    32. Observational Probes of Dark Energy (Invited plenary talk at Spanish Relativity Meeting 2011 (ERE2011))

    33. Neutrino constraints from future nearly all-sky spectroscopic galaxy surveys (JCAP 03 (2011) 030)

    34. Effects of cosmological model assumptions on galaxy redshift survey measurements, (MNRAS, 410, 1993 (2011))

    35. Designing a space-based galaxy redshift survey to probe dark energy, (MNRAS, 409, 737 (2010))

    36. Probing dark energy with future redshift surveys: A comparison of emission line and broad band selection in the near infrared (MNRAS, 405, 1006 (2010))

    37. Empirical H-alpha emitter count predictions for dark energy surveys (MNRAS, 402, 1330 (2010))

    38. Forecasts of Dark Energy Constraints from Baryon Acoustic Oscillations (MPLA, 25, 3093 (2010))

    39. Distance Measurements from Supernovae and Dark Energy Constraints (PRD 80, 123525 (2009))

    40. Model-Independent Distance Measurements from Gamma-Ray Bursts and Constraints on Dark Energy, (PRD, 78, 123532 (2008))

    41. Figure of Merit for Dark Energy Constraints from Current Observational Data, (PRD, 77, 123525 (2008))

    42. Planck priors for dark energy surveys, (PRD 78, 083529 (2008) )

    43. Improving the Calibration of Type Ia Supernovae Using Late-time Lightcurves (MNRAS 389, 489 (2008))

    44. Differentiating dark energy and modified gravity with galaxy redshift surveys (JCAP05(2008)021)

    45. Observational Bounds on Modified Gravity Models (Phys. Rev. D 77, 024017 (2008))

    46. Observational approaches to understanding dark energy (Invited review at Lepton and Photon 2007)

    47. Survey Requirements for Accurate and Precise Photometric Redshifts for Type Ia Supernovae (MNRAS, 382, 377 (2007))

    48. Observational Constraints on Dark Energy and Cosmic Curvature (Phys. Rev. D 76, 103533 (2007))

    49. A Model-Independent Photometric Redshift Estimator for Type Ia Supernovae (ApJ, 654, L123 (2007))

    50. Present and future evidence for evolving dark energy (PRD, 74, 123506 (2006))

    51. Robust Dark Energy Constraints from Supernovae, Galaxy Clustering, and Three-Year Wilkinson Microwave Anisotropy Probe Observations ( ApJ, 650, 1 (2006))

    52. Dark Energy Constraints from Baryon Acoustic Oscillations ( ApJ, 647, 1 (2006))

    53. Probing Dark Energy Using Its Density Instead of Its Equation of State, (Phys. Lett. B, 632, 449 (2006))

    54. Uncorrelated Measurements of the Cosmic Expansion History and Dark Energy from Supernovae, (Phys. Rev. D 71, 103513 (2005))

    55. Observational signatures of the weak lensing magnification of supernovae, (JCAP, 03, 005 (2005))

    56. Current Observational Constraints on Cosmic Doomsday, (JCAP, 12, 006 (2004))

    57. Dark Energy Search with Supernovae, (in proceedings of the 6th UCLA Symposium on Dark Matter and Dark Energy, (2004))

    58. New dark energy constraints from supernovae, microwave background and galaxy clustering (Phys. Rev. Lett., 92, 241302 (2004))

    59. Probing the Evolution of the Dark Energy Density with Future Supernova Surveys, (JCAP, 12, 003 (2004))

    60. Model-Independent Constraints on Dark Energy Density from Flux-averaging Analysis of Type Ia Supernova Data, (ApJ, 606, 654 (2004))

    61. Galaxy Clustering and Dark Energy (MNRAS, 349, 281 (2004))

    62. Future Type Ia Supernova Data as Tests of Dark Energy from Modified Friedmann Equations (ApJ, 594, 25-32 (2003))

    63. Dark energy effects on the Lyman-alpha forest (MNRAS, 340, L47 (2003))

    64. How Sensitive Are Weak Lensing Statistics to Dark Energy Content? (Astrophys. J., 583, 566-574 (2003))

    65. A Universal Probability Distribution Function for Weak-lensing Amplification, (Astrophys. J., 572, L15-L18 (2002))

    66. Unbiased Estimate of Dark Energy Density from Type Ia Supernova Data, (Astrophys. J., 562, L115 (2001))

    67. Measuring Time-Dependence of Dark Energy Density from Type Ia Supernova Data, (Astrophys. J. 552, 445 (2001))

    68. Flux-averaging Analysis of Type Ia Supernova Data(Astrophys. J. 536, 531 (2000))

    69. Supernova pencil beam survey (astro-ph/9806185, Astrophys. J. 531, 676 (2000))

    70. Analytical Modeling of the Weak Lensing of Standard Candles (Astrophys. J. 525, 651 (1999))

    71. The Cosmological Constant and Advanced Gravitational Wave Detectors, (Phys. Rev. D56, 724 (1997).)

      Probing Early Universe Physics

    72. Primordial Power Spectrum Reconstruction, (JCAP, 12 (2005) 007)

    73. Looking for Cosmological Alfven Waves in WMAP Data, (ApJ, 611, 655 (2004))

    74. Wavelets and WMAP non-Gaussianity, (ApJ, 613, 51 (2004))

    75. Model-Independent Reconstruction of the Primordial Power Spectrum from WMAP Data (ApJ, 599, 1 (2003))

    76. Direct Wavelet Expansion of the Primordial Power Spectrum (ApJ, 598, 779 (2003))

    77. Wavelet Band Powers of the Primordial Power Spectrum from CMB Data (ApJ, 593, 38 (2003))

    78. A Measurement of the Primordial Power Spectrum from Maxima, Boomerang, and DASI Data, (Astrophys. J. 573, 1 (2002))

    79. Cosmology in the Next Millennium: Combining MAP and SDSS Data to Constrain Inflationary Models (Astrophys. J. 510, 20 (1999))

    80. A Fast and Accurate Algorithm for Computing Tensor CBR Anisotropy (Phys.Rev. D 53, 5727 (1996))

    81. Simple Analytical Methods for Computing the Gravity-Wave Contribution to the Cosmic Background Radiation Anisotropy (Phys.Rev. D 53, 639 (1996))

      Gravtitational Lensing

    82. Caustics, critical curves and cross sections for gravitational lensing by disk galaxies(MNRAS, 292, 863 (1997))

    83. A Robust Determination of the Time Delay in 0957+561A,B and a Measurement of the Global Value of Hubble's Constant (Astrophys. J. 482, 75 (1997).)

    84. Statistics of Extreme Gravitational Lensing Events. II. The Small Shear Case(Astrophys. J. 482, 63 (1997).)

    85. Gravitational Lensing of Gravitational Waves from Merging Neutron Star Binaries(Phys.Rev.Lett. 77, 2875 (1996))

    86. Statistics of Extreme Gravitational Lensing Events. I.The Zero Shear Case(Astrophys.J. 464, 114 (1996))

      Cosmological Parameters

    87. Constraints on Neutrino Degeneracy from the Cosmic Microwave Background and Primordial Nucleosynthesis, (Phys. Rev. D 65, 123504 (2002).

    88. Constraints on extra dimensions from cosmological and terrestrial measurements, (Mod. Phys. Lett. A, Vol. 16, No. 35, pp. 2281, (2001))

    89. Prospects for Constraining Cosmology with the Extragalactic Cosmic Microwave Background Temperature, (Phys. Rev. D 64 (2001) 123002.

    90. Implications of cosmic microwave background anisotropies for large scale variations in Hubble's constant (Astrophys. J., 498, 1 (1998))

      Photometric Redshifts

    91. A Model-Independent Photometric Redshift Estimator (in the proceedings of theWorkshop on Photometric Redshifts and High Redshift Galaxies,edited by Ray Weymann, et al. (Astronomical Society of the Pacific),1999)

    92. A Catalog of Color-based Redshift Estimates for z < 4 Galaxies in the Hubble Deep Field (AJ 116, 2081 (1998))

      Dark Matter

    93. The Secondary Infall Model of Galactic Halo Formation and the Spectrum of Cold Dark Matter Particles on Earth (Phys. Rev. D56, 1863 (1997).)

    All astro images were taken by the Hubble Space Telescope and courtesy of NASA and STScI, unless otherwise noted.

    NGC 3310: grand design spiral galaxy